ISDA

Deposition Date 2010-01-12

Release Date 2010-02-16

Last Version Date 2023-09-06

Entry Detail

PDB ID:

3LD9

Keywords:

TRANSFERASE

Title:

Crystal structure of thymidylate kinase from Ehrlichia chaffeensis at 2.15A resolution

Biological Source:

Source Organism:

Ehrlichia chaffeensis (Taxon ID: 205920)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.15 Å

R-Value Free:

0.23

R-Value Work:

0.18

R-Value Observed:

0.18

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Thymidylate kinase
Gene (Uniprot):tmk
Chain IDs:A, B, C, D
Chain Length:223
Number of Molecules:4
Biological Source:Ehrlichia chaffeensis

UniProt ID:Q2GHN3 Pfam ID:PF02223 EC:2.7.4.9

Ligand Molecules

EDO

SO4

Primary Citation

Structure of thymidylate kinase from Ehrlichia chaffeensis.

Leibly, D.J, Abendroth, J, Bryan, C.M, Sankaran, B, Kelley, A, Barrett, L.K, Stewart, L, Van Voorhis, W.C.Show

Acta Crystallogr.,Sect.F 67 1090 1094 (2011)

PMID: 21904055 DOI: 10.1107/S174430911101493X

Abstact

The enzyme thymidylate kinase phosphorylates the substrate thymidine 5'-phosphate (dTMP) to form thymidine 5'-diphosphate (dTDP), which is further phosphorylated to dTTP for incorporation into DNA. Ehrlichia chaffeensis is the etiologic agent of human monocytotropic erlichiosis (HME), a potentially life-threatening tick-borne infection. HME is endemic in the United States from the southern states up to the eastern seaboard. HME is transmitted to humans via the lone star tick Amblyomma americanum. Here, the 2.15 Å resolution crystal structure of thymidylate kinase from E. chaffeensis in the apo form is presented.

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Primary Citation of related structures